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The RB26DETT engine is a legendary powerplant known for its performance and tuning potential. In this article, we will walk you through a step-by-step build process that takes the RB26DETT from 400 to 700 horsepower using high-quality Tomei parts. This guide is aimed at both enthusiasts and professionals looking to enhance their knowledge and skills in building a high-performance engine.
Understanding the RB26DETT Engine
The RB26DETT is a 2.6-liter inline-six engine that was originally designed for the Nissan Skyline GT-R. It features a twin-turbo setup, DOHC, and a robust iron block, making it a popular choice for tuners. Before diving into the build, it’s essential to understand its components and how they work together to produce power.
- Engine Block
- Cylinder Head
- Turbochargers
- Fuel System
- Exhaust System
- ECU Tuning
Step 1: Choosing the Right Tomei Parts
When building an RB26DETT engine, selecting the right parts is crucial for achieving your horsepower goals. Tomei offers a variety of performance parts that cater to different power levels. Here are some recommended parts for a 700 hp build:
- Tomei Poncams
- Tomei Forged Pistons
- Tomei H-Beam Connecting Rods
- Tomei Turbo Kits
- Tomei Fuel Rails
- Tomei Exhaust Manifold
Step 2: Disassembling the Engine
Before you can begin the build, you need to disassemble the engine. This involves removing various components to access the internals. Here’s a quick guide on how to do it:
- Remove the intake manifold.
- Disconnect the fuel lines and electrical connectors.
- Take off the turbochargers.
- Remove the cylinder head.
- Take out the pistons and connecting rods.
Step 3: Upgrading Internal Components
With the engine disassembled, it’s time to upgrade the internal components. This is where Tomei parts come into play. Start with the following:
- Install Tomei Forged Pistons for increased strength and performance.
- Replace the stock connecting rods with Tomei H-Beam rods.
- Upgrade the camshafts to Tomei Poncams for better airflow.
Step 4: Turbocharger Upgrade
To achieve 700 hp, you’ll need a capable turbocharger setup. Tomei offers various turbo options that can support high horsepower. Here’s how to install the new turbos:
- Remove the old turbochargers and exhaust manifold.
- Install the Tomei turbo kit according to the manufacturer’s instructions.
- Ensure all connections are tight and secure.
Step 5: Fuel System Upgrades
With increased power comes the need for a better fuel system. Upgrading to Tomei fuel rails and injectors is essential for delivering the necessary fuel. Follow these steps:
- Remove the old fuel rails and injectors.
- Install Tomei fuel rails and high-flow injectors.
- Connect the fuel lines securely.
Step 6: Exhaust System and Tuning
A high-performance exhaust system is crucial for maximizing power. Installing a Tomei exhaust manifold and system will help with exhaust flow. After the exhaust is installed, tuning the ECU is necessary to optimize performance:
- Install the Tomei exhaust manifold and connect the exhaust system.
- Use a standalone ECU or reflash the stock ECU for tuning.
- Ensure the fuel and ignition maps are adjusted for the new setup.
Step 7: Final Checks and Testing
Before starting the engine, perform final checks to ensure everything is in place. Look for leaks, ensure all bolts are torqued to specifications, and verify that all components are installed correctly. Once everything is checked, it’s time to start the engine and test it:
- Start the engine and let it idle.
- Check for any unusual noises or leaks.
- Take the car for a test drive to assess performance.
Conclusion
Building an RB26DETT engine to reach 700 horsepower is an ambitious yet rewarding project. By using Tomei parts, you ensure that your engine is built with high-quality components designed for performance. Follow this step-by-step guide, and you’ll be on your way to enjoying an exhilarating driving experience with your newly built engine.